Pure green emission self-crystallization CsPbBr3 quantum dot glass with Ag+ doping for stable light-emitting devices. uri icon

abstract

  • Recently, cesium lead bromide perovskite glass has been recognized as a potential material to fabricate green light emission devices because of their high stability and excellent optical performance. However, the low photoluminescence efficiency and poor color purity ($lt! 525,,{
    m nm}$) of ${{
    m CsPbBr}_3}$ quantum dot (QD) glass restricts its practical application. In this work, self-crystallization ${{
    m CsPbBr}_3}$ QD glasses are successfully prepared via the melt quenching method, and the photoluminescence efficiency increases 10-fold compared with regular thermal treatment ${{
    m CsPbBr}_3}$ QD glass without ${
    m Ag}^+$ doping. The green light-emitting devices based on bulk self-crystallization ${{
    m CsPbBr}_3}$ QD glass with 0.4 mol.% ${
    m Ag}^+$ doping achieves a luminescence efficiency of 20.85 lm/W with a CIE (0.2084, 0.6026) under a 20 mA driving current. The present results provide new, to the best of our knowledge, insight into the application of ${{
    m CsPbBr}_3}$ QD glass in the optoelectronic field.

published proceedings

  • Opt Lett

author list (cited authors)

  • Lu, Y., Li, P., Xie, W., Duan, Y., Xu, S., & Zhang, J.

citation count

  • 15

complete list of authors

  • Lu, Yang||Li, Panpan||Xie, Wenqing||Duan, Yongmin||Xu, Shiqing||Zhang, Junjie

publication date

  • June 2021